Across
- 6. the percentage of how much water covers the earths surface
- 8. … deep, the deepest part of the ocean
- 9. … reef, a beach in Australia
Down
- 1. Clouds are …
- 2. a war ship that can be submerged in water
- 3. Water becomes this when cold
- 4. hit an ice berg in 1912
- 5. the number of seas there are in the world
- 7. jacques …, person who discovered the mariana trench